Sumitomo Electric Industries, Limited

Mitsuharu Hirano

Akira Furuya

Koichi Koyama

Masahiro Shibata

Takemi Hasegawa

Kiyotaka Murashima

An optical coupling device including a plurality of optical fibers, each including first and second bared optical fiber portions, and first and second coated optical fiber portions; a holder including a first component having a first surface and a rear end, a second component disposed on the first surface of the first component and on the first bared optical fiber portions, and an adhesive resin body disposed between the first surface of the first component and the second component; a first resin body in contact with the first coated optical fiber portions and the first component; and a second resin body extending along the rear end of the first component and covering the first coated optical fiber portions. The first resin body is disposed between the adhesive resin body and the second resin body. The second resin body has a lower Young's modulus than the first resin body.

Optical coupling device and method for producing optical coupling device

An optical connecting device includes: a holder part having first and second holder members and a resin body therebetween; and multiple optical fibers each having first and second resin-uncoated fiber portions and the first and second resin-coated fiber portions. The first resin-uncoated fiber portion is disposed between first portions of the first and second holder members so as to extend in a direction of a first axis and be arranged along a first reference plane. The second resin-uncoated fiber portion and the first resin-coated fiber portion extend between second portions of the first and second holder members. One of the first and second holder members has a through-hole, extending along a second axis intersecting the first axis in the second portions thereof, receiving the resin body. The first and second holder members have first and second inner faces, separated away from the first reference plane, in the second portions, respectively.

Optical connecting device, method for fabricating optical connecting device

A method for fabricating an optical connecting device with a holder having a through hole, multiple optical fibers, a guide member, and a resin body includes steps of: preparing optical-fiber parts to provide the multiple optical fibers; preparing first and second parts to provide the holder, the first and second parts having grooves for providing the through hole of the holder; fixing the parts providing the holder and the optical-fiber parts to each other to form a first product having the through hole produced from the grooves; providing an optical connector tool; positioning a component of the tool in the through hole of the first product to provide the guide member; and thereafter, fixing the component in the through hole with resin to form a second product in which the resin provides the resin body.

Optical connecting device, light processing apparatus, method for fabricating optical connecting device

An optical processing apparatus includes: a circuit hoard having first and second areas arranged in a direction of a first axis; a semiconductor device having an optical coupling element; an optical connector having an optical fiber and a holder with first and second holder parts, and the optical connector being supported by the second area and the semiconductor device disposed on the first area; and a supporting base having a thickness smaller than that of the semiconductor device. The supporting base is disposed between the second holder part and the second area. The optical fiber has a first optical fiber portion supported by the first holder part, and a second optical fiber portion held by the first and second holder parts. The first optical fiber portion has a tip end and a cladding face which is positioned with respect to the optical coupling element and is separated apart from the semiconductor device.

Optical processing apparatus, optical connector

An optical connecting device includes: a holder; an optical fiber supported by the holder; and a guide part supported by the holder. The holder includes first and second resin bodies arranged apart from each other, a supporting part, and a first lid part, a supporting groove, and a groove. The connecting device features: the first resin body being in contact with the optical fiber between the supporting part and the first lid part, the guide part being supported in the groove, the second resin body bonding the guide part to the supporting part, the optical fiber extending in the support groove in the principal surface of the supporting part, and the first lid part being disposed apart from the guide part on the optical fiber, and the optical fiber being between the supporting part and the first lid part.

Optical connecting device, optical processing apparatus, method for fabricating optical connecting device, method for fabricating optical processing apparatus

A semiconductor device includes: a printed substrate having a through hole from an upper face to a lower face thereof; a first semiconductor element mounted on the printed substrate; an interposer mounted on the upper face of the printed substrate; a second semiconductor element adjacent to the interposer and arranged to overlap with the through hole; and a bonding wire coupling a first pad to a second pad, the first pad being on an upper face of the interposer and being positioned on the second semiconductor element side, the second pad being on an upper face of the second semiconductor element and being positioned on the interposer side, wherein the interposer has an edge face protruding with respect to a wall face of the through hole of the printed substrate toward the second semiconductor element, and the edge face faces with an edge face of the second semiconductor element.

Semiconductor device having a protruding interposer edge face

To provide an optical probe for OCT and a method of manufacturing the optical probe that can reduce reflected light generated at a boundary portion between an optical fiber and a lensed fiber. An optical probe for OCT includes an optical fiber that transmits irradiation light and back-scattered light and a lensed fiber that is fusion spliced to an end face of the optical fiber, that emits irradiation light toward the inside of a living body while collimating the irradiation light, and that collects and guides back-scattered light to the end face of the optical fiber. A refractive index adjusting material is added to the lensed fiber, and the refractive index adjusting material is diffused in an end part of the optical fiber.

Optical probe for optical coherence tomography and manufacturing method therefor

An optical measurement method that can suppress variation in detection sensitivity even if an optical probe is bent, and an optical probe suitably used for the method are provided. An optical probeincludes an optical fiberthat transmits light between a proximal endand a distal end, an optical connectorconnected with the optical fiberat a side of the proximal end, a focusing optical systemand a deflecting optical systemoptically connected with the optical fiberat a side of the distal end, and a support tubeand a jacket tubesurrounding the optical fiberand extending along the optical fiber. The optical fiberis twisted by a number of turns in a range from one turn/m to 50 turns per meter around an axis of the optical fiber as the center and fixed relative to the support tube

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Osaka, Japan

Mitsuharu Hirano